derivation

A leading or drawing off of water from a stream or source.

The act of receiving anything from a source; the act of procuring an effect from a cause, means, or condition, as profits from capital, conclusions or opinions from evidence.

(genealogy, linguistics) The act of tracing origin or descent.

(grammar) Forming a new word by changing the base of another word or by adding affixes to it.

The state or method of being derived; the relation of origin when established or asserted.

That from which a thing is derived.

That which is derived; a derivative; a deduction.

(mathematics) The operation of deducing one function from another according to a fixed definition, referred to as derivation or differentiation; this is the inverse operation to integration.

(medicine) A drawing of humors or fluids from one part of the body to another, to relieve or lessen a morbid process.